Jassem M. A. Al – Hassien. (2011). Effect of Acidity and Boiling Time on Food Contamination by Glass , Aluminium , Stainless Steel and Tefal Utensils in Iraqi Kitchens . Journal of Madenat Alelem University College, 3(1), 94-104. Retrieved from http://116.203.176.164/index.php/JMAUC/article/view/269